Samuel c



S. G. BISHOP. COMPOUND FOR INSULATING TELEGRAPH AND ELECTRIC WIRES.

No. 83,081. Patented Oct. 13, 1868.

tuted,a'odditional' V iuol'about'th'e r0 ons amid Prioctoapplyingfiiis-to the wi re,.I eover s A -MUEL c. BI'SHOPQ-OE' NEW YORK," EL tm rdz uzvmsspsngeaom qmisesr I h and Electric Wires. and Conductors; and I' do hereby'dedare fliet' the following is a mum, ande'xaot refizrenee beinghadt'o h 'aeeompanying drawing, formingpart of this tron, and in-which Figure lrepresents a pufly-seotional lo improved eompound,'aud

Figurefil: section-of the same.

of indicaje g My improved compound for hisulating telegraph andelechic'wimsismadebytakingtwoandaquarter pounds lbs.) of asphaltum; oue quarter of epeund (i lb.) one-quarter of a pound i lb.)

ofqrudemsin; half agallon.(}igal.) of spirit: 9 tur- To these 'entsLadd about one (1) pemme. gill of boiled together with two ounces (2 om.) of'umber, and mix the whole b er m erinauy meltingofthesolid euts ofeourse flie never-a1 proportions of the ts maybe more ot lessvafied'and equivalents substithe ts added; but I-findthat v H 'tudi nnl 'viewof a portion of telegraph-wimeove by my steam orvdryheat applied to it me mm GRAPH use I wmsa "mefldieduk 'rmedtoinflzeumhuntundmmpct'dthom thelatter with 5 layer of flax, or any other suitable fibrous material, which inay be braided, wound,

- or woven on the wire, and then pass the whole through the compound while hot, or said compound may be applied to the injmy other desiredway. This coating is then dried, afl'er which as many simihgr coatings of the compound may be put on as is u or desimble, interposing, it may be, a layer or covering o'fflbrous betwee'u the successive eoefings of the coup pound, until the "wire is suflide tly covered. Alter the wire hasbeen. thus coated or oovemd, t-he'-wh le,

after being lefli-to dry some days, ma? have'z'a coat-mg of varnish appliedto it, to prevent sfiekhless in mindgm compound may be applied as a coating, not only to single but many-wile lines or cables.

In the drawing-- arepreeentsesin ewirev l: b, the layers of -or llhrous materiel; and o q the successive oodtingsof the compound.

Letters Patent, is-

The -eompound fortelegraph 'and other electric wiresor conductors, of theingmdieelhts' in, or about in, the proportions covered wire witha brush, sponge, or"

- 'sA-nim 0. BIQHOP'. 

